Teresa Giudice

As Teresa Giudice gets ready to begin serving her impending 15-month jail sentence on fraud charges, the reality star told Real Housewives of New Jersey host Andy Cohen that she has "changed for the better" during part two of the reunion on Thursday.

"I need a break. You all can have the conversation without me," Giudice said, abruptly standing up in her gown and walking off set, asking a producer, "Where's the bathroom?"

Giudice was upset when her cousins Kathy Wakile and Rosie Pierri joined the show and a clip was shown in which their mother (Teresa's aunt) stated that if people do something wrong, it will eventually catch up with them.

"That's why your [family's] getting destroyed now," said Teresa Aprea, who was still angry at Giudice for spreading the rumor that her husband, Rino, slept with her mother. "Karma's a bitch. Clink, clink," she continued, mimicking the sound of handcuffs.

"I didn't start the rumor or spread the rumor," Giudice said in regard to the season-long allegation that Rino slept with his mother-in-law, which she had shared with Dina Manzo. "I don't get why Teresa [Aprea] would be mad."

Joe Giudice acknowledged Thursday in the final part of a special Watch What Happens Live interview that there was not only a chance he could be deported following his 41-month prison term but that he also had a drinking problem.

While Teresa Giudice may have pleaded guilty to bank and wire fraud charges in connection to a long-running financial conspiracy with husband Joe Giudice, her former attorney Jim Kridel – who represented the couple back in 2010 in their original bankruptcy case – says it's possible she may have committed the crimes unknowingly.

"I did not believe that Teresa was all that knowledgeable about any of the finances of her family until ultimately she became the breadwinner," Kridel tells PEOPLE.

"Everyone seems to blame her that she knew or should have known. I don't find that to be true in real life, though," he says. "People come in and sign tax returns quite often, and the spouse who is not in charge of the finances has no information. They just do what the accountant tells them."

"I do need to read things [and] understand things before I sign them," Giudice said Monday night on a special Watch What Happens Live in which she and her husband, Joe – who was sentenced to 41 months in jail – were interviewed by Andy Cohen.

"I'm a trustworthy person and sometimes I take what other people say … I can't do that anymore."